A couple of golden retriever owners who thought they'd brought home a litter's calmest puppy eventually realized the dog was the opposite of what they thought she'd be.

On July 27, TikTok user @elliethenaughtygolden posted a video showing Ellie as a small puppy, who appears quiet and well behaved. The video then transitions to an older Ellie jumping, running everywhere and trying to bite anything that crosses her path.

"POV: you brought the calmest puppy out of the litter," the user wrote in the video's text overlay, adding, "Or did we." In the caption, the user wrote, "She tricked us."

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The video quickly went viral on social media, amassing viewers from across TikTok. It has received more than 834,500 views and 70,800 likes on the platform.

Newsweek has contacted @elliethenaughtygolden for comment. We could not verify the details of the case.

Most puppies tend to be extra energetic, showing some sort of destructive behavior, and that's because they still need to learn what's acceptable and what's not.

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According to the American Kennel Club, puppies can begin simple training as soon as they come home, which is usually when they're about 8 weeks old. The AKC says it's better to keep training sessions between five and 10 minutes and always end on a positive note.

The best way to train your pup is by using positive reinforcement, which means rewarding your dog to encourage the behavior you like to see while ignoring the bad behavior.

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It's important to avoid punishments, such as leash corrections or yelling, because the dog won't understand why you're doing this and will simply be sad and confused.

In the video's comments section, viewers shared stories of their pets' transformations.

"My Golden is 18 months old now, so basically I have a velociraptor in the house at the moment," one user wrote.

Another said: "We bought the only boy, ran straight to us, kissing us, laid by us, calm and sweet, turns out someone must have fed him after midnight ..... send help."

"There are calm ones out there but normally the calmest one is just waiting for their time to shine as an only puppy," a commenter wrote.

Another added: "The high energy zoomies means she is super happy. highest compliment a puppy/dog can give. love them so much."

Do you have funny and adorable videos or pictures of your pet you want to share? Send them to life@newsweek.com with some details about your best friend and they could appear in our Pet of the Week lineup.